Border Line is a 2002 Japanese drama film, and the feature film debut of Korean-Japanese film director Sang-il Lee. It observes the lives of three unrelated characters, a son, a father and a mother, each of whom has a troubled family background.

Plot

Matsuda, 17, is being uncooperative at school. A radio broadcast reveals that he then murders his father and runs away on his bike. The next morning a drunken taxi driver, Kurosawa runs him over in his taxi. Feeling guilty about the accident, he is soon driving Matsuda to northern Japan. Matsuda remains uncommunicative and unfriendly.